chore: update SQLAlchemy configuration with custom naming convention (#6854)

api/extensions/ext_database.py

 from flask_sqlalchemy import SQLAlchemy
+from sqlalchemy import MetaData
 
-db = SQLAlchemy()
+POSTGRES_INDEXES_NAMING_CONVENTION = {
+    'ix': '%(column_0_label)s_idx',
+    'uq': '%(table_name)s_%(column_0_name)s_key',
+    'ck': '%(table_name)s_%(constraint_name)s_check',
+    'fk': '%(table_name)s_%(column_0_name)s_fkey',
+    'pk': '%(table_name)s_pkey',
+}
+
+metadata = MetaData(naming_convention=POSTGRES_INDEXES_NAMING_CONVENTION)
+db = SQLAlchemy(metadata=metadata)
 
 
 def init_app(app):

api/migrations/alembic.ini

 [alembic]
 # template used to generate migration files
 # file_template = %%(rev)s_%%(slug)s
+file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
 
 # set to 'true' to run the environment during
 # the 'revision' command, regardless of autogenerate